Ludwig R - Search Results

1

Intramolecular Polarization Contributions to the pK_a's of Carboxylic Acids Through the Chain Length Dependence of Vibrational Tag-Shifts in Cryogenically Cooled Pyridinium-(CH₂)_n-COOH (n = 1-7) Cations.

Harville PA, Moss OC, Hassan Y, Hunger L, Ludwig R, McCoy AB, Johnson MA. Harville PA, et al. Among authors: ludwig r. J Phys Chem A. 2024 Nov 28;128(47):10159-10166. doi: 10.1021/acs.jpca.4c05241. Epub 2024 Nov 15. J Phys Chem A. 2024. PMID: 39547708

2

Spectroscopic Evidence for Doubly Hydrogen-Bonded Cationic Dimers in the Solid, Liquid, and Gaseous Phases of Carboxyl-Functionalized Ionic Liquids.

Hunger L, Al Sheakh L, Fritsch S, Villinger A, Ludwig R, Harville P, Moss O, Lachowicz A, Johnson MA. Hunger L, et al. Among authors: ludwig r. J Phys Chem B. 2024 Jun 6;128(22):5463-5471. doi: 10.1021/acs.jpcb.4c02094. Epub 2024 May 22. J Phys Chem B. 2024. PMID: 38776534

3

Structural Motifs in Cold Ternary Ion Complexes of Hydroxyl-Functionalized Ionic Liquids: Isolating the Role of Cation-Cation Interactions.

Menges FS, Zeng HJ, Kelleher PJ, Gorlova O, Johnson MA, Niemann T, Strate A, Ludwig R. Menges FS, et al. Among authors: ludwig r. J Phys Chem Lett. 2018 Jun 7;9(11):2979-2984. doi: 10.1021/acs.jpclett.8b01130. Epub 2018 May 21. J Phys Chem Lett. 2018. PMID: 29750531

4

Cooperatively enhanced hydrogen bonds in ionic liquids: closing the loop with molecular mimics of hydroxy-functionalized cations.

Niemann T , Strate A , Ludwig R , Zeng HJ , Menges FS , Johnson MA . Niemann T , et al. Among authors: ludwig r. Phys Chem Chem Phys. 2019 Aug 21;21(33):18092-18098. doi: 10.1039/c9cp03300a. Phys Chem Chem Phys. 2019. PMID: 31389440

5

Chain Length Dependence of Hydrogen Bond Linkages between Cationic Constituents in Hydroxy-Functionalized Ionic Liquids: Tracking Bulk Behavior to the Molecular Level with Cold Cluster Ion Spectroscopy.

Zeng HJ, Menges FS, Niemann T, Strate A, Ludwig R, Johnson MA. Zeng HJ, et al. Among authors: ludwig r. J Phys Chem Lett. 2020 Feb 6;11(3):683-688. doi: 10.1021/acs.jpclett.9b03359. Epub 2020 Jan 14. J Phys Chem Lett. 2020. PMID: 31899639

6

Hydroxy-Functionalized Ionic Liquids under Pressure: The Influence on Hydrogen Bonding between Ions of Opposite and Like Charges.

Hunger L, Ludwig R, Chuang YC, Chang HC. Hunger L, et al. Among authors: ludwig r. J Phys Chem B. 2024 May 16;128(19):4802-4808. doi: 10.1021/acs.jpcb.4c01520. Epub 2024 May 2. J Phys Chem B. 2024. PMID: 38696327

7

Spectroscopic Evidence for an Attractive Cation-Cation Interaction in Hydroxy-Functionalized Ionic Liquids: A Hydrogen-Bonded Chain-like Trimer.

Niemann T, Strate A, Ludwig R, Zeng HJ, Menges FS, Johnson MA. Niemann T, et al. Among authors: ludwig r. Angew Chem Int Ed Engl. 2018 Nov 19;57(47):15364-15368. doi: 10.1002/anie.201808381. Epub 2018 Oct 24. Angew Chem Int Ed Engl. 2018. PMID: 30303295

8

Dissecting Noncovalent Interactions in Carboxyl-Functionalized Ionic Liquids Exhibiting Double and Single Hydrogens Bonds Between Ions of Like Charge.

Hunger L, Al-Sheakh L, Zaitsau DH, Verevkin SP, Appelhagen A, Villinger A, Ludwig R. Hunger L, et al. Among authors: ludwig r. Chemistry. 2022 Aug 16;28(46):e202200949. doi: 10.1002/chem.202200949. Epub 2022 Jul 13. Chemistry. 2022. PMID: 35785500 Free PMC article.

9

Chiral Recognition of Amino Acids Using CC2 Porous Organic Cages.

Asghar M, Lakhani A, Asif M, Sheikh NS, Hashmi MA, Ludwig R, Hammud HH, Ayub K. Asghar M, et al. Among authors: ludwig r. J Phys Chem A. 2023 May 18;127(19):4245-4258. doi: 10.1021/acs.jpca.2c08859. Epub 2023 May 8. J Phys Chem A. 2023. PMID: 37155274

10

Ion Mobility in Hydroxy-Functionalized Ionic Liquids Depends on Cationic Clustering: Tracking the Alkyl Chain Length Behavior with Deuteron NMR Relaxation.

Khudozhitkov AE, Stepanov AG, Kolokolov DI, Ludwig R. Khudozhitkov AE, et al. Among authors: ludwig r. J Phys Chem B. 2023 Nov 2;127(43):9336-9345. doi: 10.1021/acs.jpcb.3c05330. Epub 2023 Oct 19. J Phys Chem B. 2023. PMID: 37857325

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